<?xml version="1.0" encoding="UTF-8"?> 
<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types"><Default ContentType="application/vnd.openxmlformats-package.relationships+xml" Extension="rels" /><Default ContentType="application/vnd.ms-package.3dmanufacturing-3dmodel+xml" Extension="model" /></Types>